<?php

/**
 * This is the model class for table "tbl_category".
 *
 * The followings are the available columns in table 'tbl_category':
 * @property integer $category_id
 * @property string $category_name
 * @property string $category_image
 * @property integer $category_parent
 *
 * The followings are the available model relations:
 * @property Brand[] $brands
 * @property Product[] $products
 */
class Category extends CActiveRecord
{
	/**
	 * @return string the associated database table name
	 */
	public function tableName()
	{
		return 'tbl_category';
	}
    
    /**
     * @return string category's name
     */
    public function getCategoryName($category_id=null) {
        if(!is_null($category_id)){
            $category_name=Category::model()->findByPk($category_id);
            return $category_name['category_name'];     
        }else{
            throw new CHttpException(404,'Mã danh mục không được truyền vào');
        }
    }

	/**
	 * @return array validation rules for model attributes.
	 */
	public function rules()
	{
		// NOTE: you should only define rules for those attributes that
		// will receive user inputs.
		return array(
			array('category_name', 'required','message'=>REQUIRED_NOT_NULL),
			array('category_parent', 'numerical', 'integerOnly'=>true),
			array('category_name', 'length', 'max'=>50),
			array('category_image', 'safe'),
			// The following rule is used by search().
			// @todo Please remove those attributes that should not be searched.
			array('category_id, category_name, category_image, category_parent', 'safe', 'on'=>'search'),
		);
	}

	/**
	 * @return array relational rules.
	 */
	public function relations()
	{
		// NOTE: you may need to adjust the relation name and the related
		// class name for the relations automatically generated below.
		return array(
			'brands' => array(self::HAS_MANY, 'Brand', 'category_id'),
			'products' => array(self::HAS_MANY, 'Product', 'category_id'),
		);
	}

	/**
	 * @return array customized attribute labels (name=>label)
	 */
	public function attributeLabels()
	{
		return array(
			'category_id' => 'Mã',
			'category_name' => 'Tên danh mục',
			'category_image' => 'Ảnh',
			'category_parent' => 'Danh mục cha',
		);
	}

	/**
	 * Retrieves a list of models based on the current search/filter conditions.
	 *
	 * Typical usecase:
	 * - Initialize the model fields with values from filter form.
	 * - Execute this method to get CActiveDataProvider instance which will filter
	 * models according to data in model fields.
	 * - Pass data provider to CGridView, CListView or any similar widget.
	 *
	 * @return CActiveDataProvider the data provider that can return the models
	 * based on the search/filter conditions.
	 */
	public function search()
	{
		// @todo Please modify the following code to remove attributes that should not be searched.

		$criteria=new CDbCriteria;

		$criteria->compare('category_id',$this->category_id);
		$criteria->compare('category_name',$this->category_name,true);
		$criteria->compare('category_image',$this->category_image,true);
		$criteria->compare('category_parent',$this->category_parent);

		return new CActiveDataProvider($this, array(
			'criteria'=>$criteria,
		));
	}

	/**
	 * Returns the static model of the specified AR class.
	 * Please note that you should have this exact method in all your CActiveRecord descendants!
	 * @param string $className active record class name.
	 * @return Category the static model class
	 */
	public static function model($className=__CLASS__)
	{
		return parent::model($className);
	}
}
